Which type of joint allows movement to straighten in one direction only and is found in the elbow bends of the human body?
Hinge joint
A hinge joint works like the hinge of a door: the bones can move back and forth in one plane only, bending (flexion) and straightening (extension), but cannot rotate or move sideways.
The elbow is a hinge joint, as are the knee and the joints between the bones of the fingers. At the elbow the forearm can bend towards the upper arm and straighten again, but only in that one direction.
A ball and socket joint, as in the shoulder and hip, allows movement in all directions. A pivot joint, as between the first two vertebrae of the neck, allows rotation, such as turning the head. A fixed joint, as between the bones of the skull, allows no movement.
Hence, Hinge joint.
Which of the following is the primary reason for recommending breastfeeding immediately after birth?
The base of the skull, extends a flexible column called _________.
Which hormone is mainly responsible for regulating blood sugar levels in humans?
Which of the following nutrients is strictly required by the thyroid gland to synthesize the hormone thyroxine?
Which statement explains how muscle and bone tissues work together in the human musculoskeletal system?
A patient has a heart condition in which the left ventricle pumps blood inefficiently. What is the most immediate effect on the body's transport system?
Which of the following is the main role of hydrochloric acid (HCl) in the stomach?
A resting person, usually has a pulse rate between ______ and ______ beats per minute
In humans, neck and head are joined by which joint ?
The human skeleton is composed of around ______ bones at birth.
To which of the following organ do the pulmonary arteries supply blood?
The transparent front part of the eye is called: